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removed $_ variables.
[squirrelmail.git] / plugins / filters / filters.php
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849bdf42 1<?php
15e6162e 2/**
0a1dc88e 3 * Message and Spam Filter Plugin - Filtering Functions
15e6162e 4 *
82d304a0 5 * Copyright (c) 1999-2004 The SquirrelMail Project Team
15e6162e 6 * Licensed under the GNU GPL. For full terms see the file COPYING.
7 *
8 * This plugin filters your inbox into different folders based upon given
9 * criteria. It is most useful for people who are subscibed to mailing lists
10 * to help organize their messages. The argument stands that filtering is
11 * not the place of the client, which is why this has been made a plugin for
12 * SquirrelMail. You may be better off using products such as Sieve or
13 * Procmail to do your filtering so it happens even when SquirrelMail isn't
14 * running.
15 *
16 * If you need help with this, or see improvements that can be made, please
17 * email me directly at the address above. I definately welcome suggestions
18 * and comments. This plugin, as is the case with all SquirrelMail plugins,
19 * is not directly supported by the developers. Please come to me off the
20 * mailing list if you have trouble with it.
21 *
22 * Also view plugins/README.plugins for more information.
23 *
5b4ba967 24 * @version $Id$
ea5f4b8e 25 * @package plugins
26 * @subpackage filters
15e6162e 27 */
4eee5968 28
ea5f4b8e 29/**
0a1dc88e 30 * FIXME: Undocumented function
31 * @access private
5b4ba967 32 */
a2a566eb 33function filters_SaveCache () {
34 global $data_dir, $SpamFilters_DNScache;
35
ae48f757 36 if (file_exists($data_dir . '/dnscache')) {
37 $fp = fopen($data_dir . '/dnscache', 'r');
a2a566eb 38 } else {
39 $fp = false;
40 }
41 if ($fp) {
42 flock($fp,LOCK_EX);
43 } else {
ae48f757 44 $fp = fopen($data_dir . '/dnscache', 'w+');
a2a566eb 45 fclose($fp);
ae48f757 46 $fp = fopen($data_dir . '/dnscache', 'r');
a2a566eb 47 flock($fp,LOCK_EX);
48 }
ae48f757 49 $fp1=fopen($data_dir . '/dnscache', 'w+');
a2a566eb 50
51 foreach ($SpamFilters_DNScache as $Key=> $Value) {
52 $tstr = $Key . ',' . $Value['L'] . ',' . $Value['T'] . "\n";
53 fputs ($fp1, $tstr);
54 }
55 fclose($fp1);
56 flock($fp,LOCK_UN);
57 fclose($fp);
58}
59
0a1dc88e 60/**
61 * FIXME: Undocumented function
62 * @access private
63 */
a2a566eb 64function filters_LoadCache () {
65 global $data_dir, $SpamFilters_DNScache;
66
ae48f757 67 if (file_exists($data_dir . '/dnscache')) {
6ade76e0 68 $SpamFilters_DNScache = array();
ae48f757 69 if ($fp = fopen ($data_dir . '/dnscache', 'r')) {
a2a566eb 70 flock($fp,LOCK_SH);
71 while ($data=fgetcsv($fp,1024)) {
72 if ($data[2] > time()) {
73 $SpamFilters_DNScache[$data[0]]['L'] = $data[1];
74 $SpamFilters_DNScache[$data[0]]['T'] = $data[2];
75 }
76 }
77
78 flock($fp,LOCK_UN);
79 }
80 }
81}
82
0a1dc88e 83/**
84 * FIXME: Undocumented function
85 * @access private
86 */
fb577a4d 87function filters_bulkquery($filters, $IPs) {
a2a566eb 88 global $SpamFilters_YourHop, $attachment_dir, $username,
6ade76e0 89 $SpamFilters_DNScache, $SpamFilters_BulkQuery,
90 $SpamFilters_CacheTTL;
a2a566eb 91
a2a566eb 92 if (count($IPs) > 0) {
93 $rbls = array();
94 foreach ($filters as $key => $value) {
95 if ($filters[$key]['enabled']) {
96 if ($filters[$key]['dns']) {
97 $rbls[$filters[$key]['dns']] = true;
98 }
99 }
100 }
101
ae48f757 102 $bqfil = $attachment_dir . $username . '-bq.in';
103 $fp = fopen($bqfil, 'w');
6ade76e0 104 fputs ($fp, $SpamFilters_CacheTTL . "\n");
a2a566eb 105 foreach ($rbls as $key => $value) {
ae48f757 106 fputs ($fp, '.' . $key . "\n");
a2a566eb 107 }
108 fputs ($fp, "----------\n");
109 foreach ($IPs as $key => $value) {
110 fputs ($fp, $key . "\n");
111 }
112 fclose ($fp);
113 $bqout = array();
ae48f757 114 exec ($SpamFilters_BulkQuery . ' < ' . $bqfil, $bqout);
a2a566eb 115 foreach ($bqout as $value) {
116 $Chunks = explode(',', $value);
117 $SpamFilters_DNScache[$Chunks[0]]['L'] = $Chunks[1];
118 $SpamFilters_DNScache[$Chunks[0]]['T'] = $Chunks[2] + time();
119 }
120 unlink($bqfil);
121 }
122}
123
0a1dc88e 124/**
125 * FIXME: Undocumented function
126 * @access private
127 */
10a26cea 128function start_filters() {
41100fce 129 global $mailbox, $imapServerAddress, $imapPort, $imap,
4f6915b0 130 $imap_general, $filters, $imap_stream, $imapConnection,
3c66c567 131 $UseSeparateImapConnection, $AllowSpamFilters;
41100fce 132
3c66c567 133 sqgetGlobalVar('username', $username, SQ_SESSION);
134 sqgetGlobalVar('key', $key, SQ_COOKIE);
10a26cea 135
d9a8ac55 136# if ($mailbox == 'INBOX') {
10a26cea 137 // Detect if we have already connected to IMAP or not.
138 // Also check if we are forced to use a separate IMAP connection
139 if ((!isset($imap_stream) && !isset($imapConnection)) ||
140 $UseSeparateImapConnection) {
141 $stream = sqimap_login($username, $key, $imapServerAddress,
142 $imapPort, 10);
143 $previously_connected = false;
144 } elseif (isset($imapConnection)) {
145 $stream = $imapConnection;
146 $previously_connected = true;
147 } else {
148 $previously_connected = true;
149 $stream = $imap_stream;
150 }
4eee5968 151
10a26cea 152 if (sqimap_get_num_messages($stream, 'INBOX') > 0) {
153 // Filter spam from inbox before we sort them into folders
154 if ($AllowSpamFilters) {
155 spam_filters($stream);
4eee5968 156 }
157
10a26cea 158 // Sort into folders
159 user_filters($stream);
160 }
4eee5968 161
10a26cea 162 if (!$previously_connected) {
163 sqimap_logout($stream);
4eee5968 164 }
d9a8ac55 165# }
10a26cea 166}
167
0a1dc88e 168/**
169 * FIXME: Undocumented function
170 * @access private
171 */
10a26cea 172function user_filters($imap_stream) {
c8a2c24d 173 global $data_dir, $username;
10a26cea 174 $filters = load_filters();
175 if (! $filters) return;
c8a2c24d 176 $filters_user_scan = getPref($data_dir, $username, 'filters_user_scan');
10a26cea 177
178 sqimap_mailbox_select($imap_stream, 'INBOX');
fb577a4d 179 $expunge = false;
53fcc494 180 // For every rule
ae48f757 181 for ($i=0, $num = count($filters); $i < $num; $i++) {
10a26cea 182 // If it is the "combo" rule
183 if ($filters[$i]['where'] == 'To or Cc') {
53fcc494 184 /*
185 * If it's "TO OR CC", we have to do two searches, one for TO
186 * and the other for CC.
187 */
fb577a4d 188 $expunge = filter_search_and_delete($imap_stream, 'TO',
189 $filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
190 $expunge = filter_search_and_delete($imap_stream, 'CC',
191 $filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
10a26cea 192 } else {
53fcc494 193 /*
194 * If it's a normal TO, CC, SUBJECT, or FROM, then handle it
195 * normally.
196 */
fb577a4d 197 $expunge = filter_search_and_delete($imap_stream, $filters[$i]['where'],
198 $filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
4eee5968 199 }
4eee5968 200 }
53fcc494 201 // Clean out the mailbox whether or not auto_expunge is on
202 // That way it looks like it was redirected properly
fb577a4d 203 if ($expunge) {
4f6915b0 204 sqimap_mailbox_expunge($imap_stream, 'INBOX');
53fcc494 205 }
10a26cea 206}
207
0a1dc88e 208/**
209 * FIXME: Undocumented function
210 * @access private
211 */
fb577a4d 212function filter_search_and_delete($imap_stream, $where, $what, $where_to, $user_scan,
213 $should_expunge) {
6201339c 214 global $languages, $squirrelmail_language, $allow_charset_search, $imap_server_type;
215
c8a2c24d 216 if ($user_scan == 'new') {
217 $category = 'UNSEEN';
218 } else {
219 $category = 'ALL';
220 }
221
3eea00ca 222 if ($allow_charset_search &&
223 isset($languages[$squirrelmail_language]['CHARSET']) &&
53fcc494 224 $languages[$squirrelmail_language]['CHARSET']) {
3eea00ca 225 $search_str = 'SEARCH CHARSET '
226 . strtoupper($languages[$squirrelmail_language]['CHARSET'])
227 . ' ' . $category;
f9ca4be0 228 } else {
3eea00ca 229 $search_str = 'SEARCH CHARSET US-ASCII ' . $category;
f9ca4be0 230 }
ae48f757 231 if ($where == 'Header') {
3eea00ca 232 $what = explode(':', $what);
233 $where = trim($where . ' ' . $what[0]);
234 $what = addslashes(trim($what[1]));
9da6bdde 235 }
f18ea37e 236
237 if ($imap_server_type == 'macosx') {
238 $search_str .= ' ' . $where . ' ' . $what;
239 } else {
240 $search_str .= ' ' . $where . ' {' . strlen($what) . "}\r\n"
241 . $what . "\r\n";
242 }
10a26cea 243
53fcc494 244 /* read data back from IMAP */
6201339c 245 $read = sqimap_run_command($imap_stream, $search_str, true, $response, $message, TRUE);
3eea00ca 246
53fcc494 247 // This may have problems with EIMS due to it being goofy
248
ae48f757 249 for ($r=0, $num = count($read); $r < $num &&
53fcc494 250 substr($read[$r], 0, 8) != '* SEARCH'; $r++) {}
251 if ($response == 'OK') {
252 $ids = explode(' ', $read[$r]);
fb577a4d 253
254 if (sqimap_mailbox_exists($imap_stream, $where_to)) {
255 $del_id = array();
ae48f757 256 for ($j=2, $num = count($ids); $j < $num; $j++) {
10a26cea 257 $id = trim($ids[$j]);
fb577a4d 258 if (is_numeric($id)) {
259 $del_id[] = $id;
260 }
261 }
262 if (count($del_id)) {
263 $should_expunge = true;
264 sqimap_msgs_list_move ($imap_stream, $del_id, $where_to);
265 // sqimap_mailbox_expunge($imap_stream, 'INBOX');
4eee5968 266 }
267 }
268 }
fb577a4d 269 return $should_expunge;
10a26cea 270}
4eee5968 271
0a1dc88e 272/**
273 * FIXME: Undocumented function
274 * @access private
275 */
10a26cea 276function spam_filters($imap_stream) {
6201339c 277 global $data_dir, $username;
10a26cea 278 global $SpamFilters_YourHop;
279 global $SpamFilters_DNScache;
a2a566eb 280 global $SpamFilters_SharedCache;
281 global $SpamFilters_BulkQuery;
fb577a4d 282 global $SpamFilters_CacheTTL;
4eee5968 283
10a26cea 284 $filters_spam_scan = getPref($data_dir, $username, 'filters_spam_scan');
285 $filters_spam_folder = getPref($data_dir, $username, 'filters_spam_folder');
286 $filters = load_spam_filters();
4eee5968 287
a2a566eb 288 if ($SpamFilters_SharedCache) {
289 filters_LoadCache();
290 }
291
fb577a4d 292 $run = false;
4eee5968 293
fb577a4d 294 foreach ($filters as $Key => $Value) {
10a26cea 295 if ($Value['enabled']) {
fb577a4d 296 $run = true;
297 break;
4eee5968 298 }
10a26cea 299 }
4eee5968 300
10a26cea 301 // short-circuit
fb577a4d 302 if (!$run) {
10a26cea 303 return;
304 }
4eee5968 305
10a26cea 306 sqimap_mailbox_select($imap_stream, 'INBOX');
4eee5968 307
10a26cea 308 // Ask for a big list of all "Received" headers in the inbox with
309 // flags for each message. Kinda big.
fb577a4d 310
311 // MGK, removed FLAGS from query. It wasn't used.
c8a2c24d 312 if ($filters_spam_scan != 'new') {
fb577a4d 313 $query = 'FETCH 1:* (BODY.PEEK[HEADER.FIELDS (Received)])';
c8a2c24d 314 } else {
6201339c 315 $read = sqimap_run_command($imap_stream, 'SEARCH UNSEEN', true, $response, $message, TRUE);
c8a2c24d 316 if ($response != 'OK' || trim($read[0]) == '* SEARCH') {
fb577a4d 317 $query = 'FETCH 1:* (BODY.PEEK[HEADER.FIELDS (RECEIVED)])';
c8a2c24d 318 } else {
6174dcc7 319 if (isset($read[0])) {
320 if (preg_match("/^\* SEARCH (.+)$/", $read[0], $regs)) {
321 $search_array = preg_split("/ /", trim($regs[1]));
322 }
c8a2c24d 323 }
fb577a4d 324 $msgs_str = sqimap_message_list_squisher($search_array);
325 $query = 'FETCH ' . $msgs_str . ' (BODY.PEEK[HEADER.FIELDS (RECEIVED)])';
326 }
c8a2c24d 327 }
fb577a4d 328 $headers = filter_get_headers ($imap_stream, $query);
329 if (!$headers) {
10a26cea 330 return;
331 }
fb577a4d 332
333 $bulkquery = (strlen($SpamFilters_BulkQuery) > 0 ? true : false);
334 $IPs = array();
335 $aSpamIds = array();
336 foreach ($headers as $id => $aValue) {
337 if (isset($aValue['UID'])) {
338 $MsgNum = $aValue['UID'];
339 } else {
340 $MsgNum = $id;
10a26cea 341 }
10a26cea 342 // Look through all of the Received headers for IP addresses
fb577a4d 343 if (isset($aValue['HEADER']['Received'])) {
344 foreach ($aValue['HEADER']['Received'] as $received) {
345 // Check to see if this line is the right "Received from" line
346 // to check
347
348 // $aValue['HEADER']['Received'] is an array with all the received lines.
349 // We should check them from bottom to top and only check the first 2.
350 // Currently we check only the header where $SpamFilters_YourHop in occures
351
352 if (is_int(strpos($received, $SpamFilters_YourHop))) {
353 if (preg_match('/([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/',$received,$aMatch)) {
354 $isspam = false;
355 if (filters_spam_check_site($aMatch[1],$aMatch[2],$aMatch[3],$aMatch[4],$filters)) {
356 $aSpamIds[] = $MsgNum;
357 $isspam = true;
358 }
359 if ($bulkquery) {
360 array_shift($aMatch);
361 $IP = explode('.',$aMatch);
362 foreach ($filters as $key => $value) {
363 if ($filters[$key]['enabled'] && $filters[$key]['dns']) {
364 if (strlen($SpamFilters_DNScache[$IP.'.'.$filters[$key]['dns']]) == 0) {
365 $IPs[$IP] = true;
366 break;
367 }
368 }
369 }
c8a2c24d 370 }
371 // If we've checked one IP and YourHop is
372 // just a space
fb577a4d 373 if ($SpamFilters_YourHop == ' ' || $isspam) {
c8a2c24d 374 break; // don't check any more
a9aa7ab7 375 }
a9aa7ab7 376 }
4eee5968 377 }
4eee5968 378 }
4eee5968 379 }
10a26cea 380 }
fb577a4d 381 // Lookie! It's spam! Yum!
382 if (count($aSpamIds) && sqimap_mailbox_exists($imap_stream, $filters_spam_folder)) {
383 sqimap_msgs_list_move ($imap_stream, $aSpamIds, $filters_spam_folder);
384 sqimap_mailbox_expunge($imap_stream, 'INBOX');
385 }
4eee5968 386
fb577a4d 387 if ($bulkquery && count($IPs)) {
388 filters_bulkquery($filters, $IPs);
389 }
4eee5968 390
a2a566eb 391 if ($SpamFilters_SharedCache) {
392 filters_SaveCache();
393 } else {
41100fce 394 sqsession_register($SpamFilters_DNScache, 'SpamFilters_DNScache');
a2a566eb 395 }
10a26cea 396}
4eee5968 397
0a1dc88e 398/**
399 * FIXME: Undocumented function
400 * Does the loop through each enabled filter for the specified IP address.
401 * IP format: $a.$b.$c.$d
402 * @access private
403 */
10a26cea 404function filters_spam_check_site($a, $b, $c, $d, &$filters) {
a2a566eb 405 global $SpamFilters_DNScache, $SpamFilters_CacheTTL;
10a26cea 406 foreach ($filters as $key => $value) {
407 if ($filters[$key]['enabled']) {
408 if ($filters[$key]['dns']) {
409 $filter_revip = $d . '.' . $c . '.' . $b . '.' . $a . '.' .
410 $filters[$key]['dns'];
ae48f757 411
412 if(!isset($SpamFilters_DNScache[$filter_revip]['L']))
413 $SpamFilters_DNScache[$filter_revip]['L'] = '';
414
415 if(!isset($SpamFilters_DNScache[$filter_revip]['T']))
416 $SpamFilters_DNScache[$filter_revip]['T'] = '';
417
a7cd90dd 418 if (strlen($SpamFilters_DNScache[$filter_revip]['L']) == 0) {
419 $SpamFilters_DNScache[$filter_revip]['L'] =
420 gethostbyname($filter_revip);
421 $SpamFilters_DNScache[$filter_revip]['T'] =
422 time() + $SpamFilters_CacheTTL;
423 }
424 if ($SpamFilters_DNScache[$filter_revip]['L'] ==
425 $filters[$key]['result']) {
426 return 1;
4eee5968 427 }
428 }
429 }
4eee5968 430 }
10a26cea 431 return 0;
432}
433
0a1dc88e 434/**
435 * FIXME: Undocumented function
436 * @access private
437 */
10a26cea 438function load_filters() {
439 global $data_dir, $username;
c8a2c24d 440
10a26cea 441 $filters = array();
442 for ($i=0; $fltr = getPref($data_dir, $username, 'filter' . $i); $i++) {
443 $ary = explode(',', $fltr);
444 $filters[$i]['where'] = $ary[0];
445 $filters[$i]['what'] = $ary[1];
446 $filters[$i]['folder'] = $ary[2];
4eee5968 447 }
10a26cea 448 return $filters;
449}
450
0a1dc88e 451/**
452 * FIXME: Undocumented function
453 * @access private
454 */
10a26cea 455function load_spam_filters() {
51199e7a 456 global $data_dir, $username, $SpamFilters_ShowCommercial;
457
458 if ($SpamFilters_ShowCommercial) {
459 $filters['MAPS RBL']['prefname'] = 'filters_spam_maps_rbl';
460 $filters['MAPS RBL']['name'] = 'MAPS Realtime Blackhole List';
461 $filters['MAPS RBL']['link'] = 'http://www.mail-abuse.org/rbl/';
462 $filters['MAPS RBL']['dns'] = 'blackholes.mail-abuse.org';
463 $filters['MAPS RBL']['result'] = '127.0.0.2';
464 $filters['MAPS RBL']['comment'] =
465 _("COMMERCIAL - This list contains servers that are verified spam senders. It is a pretty reliable list to scan spam from.");
466
467 $filters['MAPS RSS']['prefname'] = 'filters_spam_maps_rss';
468 $filters['MAPS RSS']['name'] = 'MAPS Relay Spam Stopper';
469 $filters['MAPS RSS']['link'] = 'http://www.mail-abuse.org/rss/';
470 $filters['MAPS RSS']['dns'] = 'relays.mail-abuse.org';
471 $filters['MAPS RSS']['result'] = '127.0.0.2';
472 $filters['MAPS RSS']['comment'] =
473 _("COMMERCIAL - Servers that are configured (or misconfigured) to allow spam to be relayed through their system will be banned with this. Another good one to use.");
474
475 $filters['MAPS DUL']['prefname'] = 'filters_spam_maps_dul';
476 $filters['MAPS DUL']['name'] = 'MAPS Dial-Up List';
477 $filters['MAPS DUL']['link'] = 'http://www.mail-abuse.org/dul/';
478 $filters['MAPS DUL']['dns'] = 'dialups.mail-abuse.org';
479 $filters['MAPS DUL']['result'] = '127.0.0.3';
480 $filters['MAPS DUL']['comment'] =
481 _("COMMERCIAL - Dial-up users are often filtered out since they should use their ISP's mail servers to send mail. Spammers typically get a dial-up account and send spam directly from there.");
482
483 $filters['MAPS RBLplus-RBL']['prefname'] = 'filters_spam_maps_rblplus_rbl';
484 $filters['MAPS RBLplus-RBL']['name'] = 'MAPS RBL+ RBL List';
485 $filters['MAPS RBLplus-RBL']['link'] = 'http://www.mail-abuse.org/';
486 $filters['MAPS RBLplus-RBL']['dns'] = 'rbl-plus.mail-abuse.org';
487 $filters['MAPS RBLplus-RBL']['result'] = '127.0.0.2';
488 $filters['MAPS RBLplus-RBL']['comment'] =
489 _("COMMERCIAL - RBL+ Blackhole entries.");
490
491 $filters['MAPS RBLplus-RSS']['prefname'] = 'filters_spam_maps_rblplus_rss';
492 $filters['MAPS RBLplus-RSS']['name'] = 'MAPS RBL+ List RSS entries';
493 $filters['MAPS RBLplus-RSS']['link'] = 'http://www.mail-abuse.org/';
494 $filters['MAPS RBLplus-RSS']['dns'] = 'rbl-plus.mail-abuse.org';
495 $filters['MAPS RBLplus-RSS']['result'] = '127.0.0.2';
496 $filters['MAPS RBLplus-RSS']['comment'] =
497 _("COMMERCIAL - RBL+ OpenRelay entries.");
498
499 $filters['MAPS RBLplus-DUL']['prefname'] = 'filters_spam_maps_rblplus_dul';
500 $filters['MAPS RBLplus-DUL']['name'] = 'MAPS RBL+ List DUL entries';
501 $filters['MAPS RBLplus-DUL']['link'] = 'http://www.mail-abuse.org/';
502 $filters['MAPS RBLplus-DUL']['dns'] = 'rbl-plus.mail-abuse.org';
503 $filters['MAPS RBLplus-DUL']['result'] = '127.0.0.3';
504 $filters['MAPS RBLplus-DUL']['comment'] =
505 _("COMMERCIAL - RBL+ Dial-up entries.");
506 }
10a26cea 507
10a26cea 508 $filters['ORDB']['prefname'] = 'filters_spam_ordb';
509 $filters['ORDB']['name'] = 'Open Relay Database List';
510 $filters['ORDB']['link'] = 'http://www.ordb.org/';
511 $filters['ORDB']['dns'] = 'relays.ordb.org';
512 $filters['ORDB']['result'] = '127.0.0.2';
513 $filters['ORDB']['comment'] =
514 _("FREE - ORDB was born when ORBS went off the air. It seems to have fewer false positives than ORBS did though.");
515
10a26cea 516 $filters['FiveTen Direct']['prefname'] = 'filters_spam_fiveten_src';
517 $filters['FiveTen Direct']['name'] = 'Five-Ten-sg.com Direct SPAM Sources';
518 $filters['FiveTen Direct']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
519 $filters['FiveTen Direct']['dns'] = 'blackholes.five-ten-sg.com';
520 $filters['FiveTen Direct']['result'] = '127.0.0.2';
521 $filters['FiveTen Direct']['comment'] =
522 _("FREE - Five-Ten-sg.com - Direct SPAM sources.");
523
524 $filters['FiveTen DUL']['prefname'] = 'filters_spam_fiveten_dul';
525 $filters['FiveTen DUL']['name'] = 'Five-Ten-sg.com DUL Lists';
526 $filters['FiveTen DUL']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
527 $filters['FiveTen DUL']['dns'] = 'blackholes.five-ten-sg.com';
528 $filters['FiveTen DUL']['result'] = '127.0.0.3';
529 $filters['FiveTen DUL']['comment'] =
530 _("FREE - Five-Ten-sg.com - Dial-up lists - includes some DSL IPs.");
531
532 $filters['FiveTen Unc. OptIn']['prefname'] = 'filters_spam_fiveten_oi';
533 $filters['FiveTen Unc. OptIn']['name'] = 'Five-Ten-sg.com Unconfirmed OptIn Lists';
534 $filters['FiveTen Unc. OptIn']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
535 $filters['FiveTen Unc. OptIn']['dns'] = 'blackholes.five-ten-sg.com';
536 $filters['FiveTen Unc. OptIn']['result'] = '127.0.0.4';
537 $filters['FiveTen Unc. OptIn']['comment'] =
538 _("FREE - Five-Ten-sg.com - Bulk mailers that do not use confirmed opt-in.");
539
540 $filters['FiveTen Others']['prefname'] = 'filters_spam_fiveten_oth';
541 $filters['FiveTen Others']['name'] = 'Five-Ten-sg.com Other Misc. Servers';
542 $filters['FiveTen Others']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
543 $filters['FiveTen Others']['dns'] = 'blackholes.five-ten-sg.com';
544 $filters['FiveTen Others']['result'] = '127.0.0.5';
545 $filters['FiveTen Others']['comment'] =
546 _("FREE - Five-Ten-sg.com - Other misc. servers.");
547
548 $filters['FiveTen Single Stage']['prefname'] = 'filters_spam_fiveten_ss';
549 $filters['FiveTen Single Stage']['name'] = 'Five-Ten-sg.com Single Stage Servers';
550 $filters['FiveTen Single Stage']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
551 $filters['FiveTen Single Stage']['dns'] = 'blackholes.five-ten-sg.com';
552 $filters['FiveTen Single Stage']['result'] = '127.0.0.6';
553 $filters['FiveTen Single Stage']['comment'] =
554 _("FREE - Five-Ten-sg.com - Single Stage servers.");
555
556 $filters['FiveTen SPAM Support']['prefname'] = 'filters_spam_fiveten_supp';
557 $filters['FiveTen SPAM Support']['name'] = 'Five-Ten-sg.com SPAM Support Servers';
558 $filters['FiveTen SPAM Support']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
559 $filters['FiveTen SPAM Support']['dns'] = 'blackholes.five-ten-sg.com';
560 $filters['FiveTen SPAM Support']['result'] = '127.0.0.7';
561 $filters['FiveTen SPAM Support']['comment'] =
562 _("FREE - Five-Ten-sg.com - SPAM Support servers.");
563
564 $filters['FiveTen Web forms']['prefname'] = 'filters_spam_fiveten_wf';
565 $filters['FiveTen Web forms']['name'] = 'Five-Ten-sg.com Web Form IPs';
566 $filters['FiveTen Web forms']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
567 $filters['FiveTen Web forms']['dns'] = 'blackholes.five-ten-sg.com';
568 $filters['FiveTen Web forms']['result'] = '127.0.0.8';
569 $filters['FiveTen Web forms']['comment'] =
570 _("FREE - Five-Ten-sg.com - Web Form IPs.");
571
572 $filters['Dorkslayers']['prefname'] = 'filters_spam_dorks';
573 $filters['Dorkslayers']['name'] = 'Dorkslayers Lists';
574 $filters['Dorkslayers']['link'] = 'http://www.dorkslayers.com';
575 $filters['Dorkslayers']['dns'] = 'orbs.dorkslayers.com';
576 $filters['Dorkslayers']['result'] = '127.0.0.2';
577 $filters['Dorkslayers']['comment'] =
578 _("FREE - Dorkslayers appears to include only really bad open relays outside the US to avoid being sued. Interestingly enough, their website recommends you NOT use their service.");
579
580 $filters['SPAMhaus']['prefname'] = 'filters_spam_spamhaus';
581 $filters['SPAMhaus']['name'] = 'SPAMhaus Lists';
582 $filters['SPAMhaus']['link'] = 'http://www.spamhaus.org';
583 $filters['SPAMhaus']['dns'] = 'sbl.spamhaus.org';
584 $filters['SPAMhaus']['result'] = '127.0.0.6';
585 $filters['SPAMhaus']['comment'] =
586 _("FREE - SPAMhaus - A list of well-known SPAM sources.");
587
588 $filters['SPAMcop']['prefname'] = 'filters_spam_spamcop';
589 $filters['SPAMcop']['name'] = 'SPAM Cop Lists';
590 $filters['SPAMcop']['link'] = 'http://spamcop.net/bl.shtml';
591 $filters['SPAMcop']['dns'] = 'bl.spamcop.net';
592 $filters['SPAMcop']['result'] = '127.0.0.2';
593 $filters['SPAMcop']['comment'] =
0b73fb97 594 _("FREE, for now - SPAMCOP - An interesting solution that lists servers that have a very high spam to legit email ratio (85 percent or more).");
10a26cea 595
46a184ff 596 $filters['dev.null.dk']['prefname'] = 'filters_spam_devnull';
597 $filters['dev.null.dk']['name'] = 'dev.null.dk Lists';
598 $filters['dev.null.dk']['link'] = 'http://dev.null.dk/';
599 $filters['dev.null.dk']['dns'] = 'dev.null.dk';
600 $filters['dev.null.dk']['result'] = '127.0.0.2';
601 $filters['dev.null.dk']['comment'] =
602 _("FREE - dev.null.dk - I don't have any detailed info on this list.");
603
604 $filters['visi.com']['prefname'] = 'filters_spam_visi';
605 $filters['visi.com']['name'] = 'visi.com Relay Stop List';
606 $filters['visi.com']['link'] = 'http://relays.visi.com';
607 $filters['visi.com']['dns'] = 'relays.visi.com';
608 $filters['visi.com']['result'] = '127.0.0.2';
609 $filters['visi.com']['comment'] =
610 _("FREE - visi.com - Relay Stop List. Very conservative OpenRelay List.");
611
bd35ab2b 612 $filters['ahbl.org Open Relays']['prefname'] = 'filters_spam_2mb_or';
613 $filters['ahbl.org Open Relays']['name'] = 'ahbl.org Open Relays List';
614 $filters['ahbl.org Open Relays']['link'] = 'http://www.ahbl.org/';
615 $filters['ahbl.org Open Relays']['dns'] = 'dnsbl.ahbl.org';
616 $filters['ahbl.org Open Relays']['result'] = '127.0.0.2';
617 $filters['ahbl.org Open Relays']['comment'] =
618 _("FREE - ahbl.org Open Relays - Another list of Open Relays.");
619
620 $filters['ahbl.org SPAM Source']['prefname'] = 'filters_spam_2mb_ss';
621 $filters['ahbl.org SPAM Source']['name'] = 'ahbl.org SPAM Source List';
622 $filters['ahbl.org SPAM Source']['link'] = 'http://www.ahbl.org/';
623 $filters['ahbl.org SPAM Source']['dns'] = 'dnsbl.ahbl.org';
624 $filters['ahbl.org SPAM Source']['result'] = '127.0.0.4';
625 $filters['ahbl.org SPAM Source']['comment'] =
626 _("FREE - ahbl.org SPAM Source - List of Direct SPAM Sources.");
627
628 $filters['ahbl.org SPAM ISPs']['prefname'] = 'filters_spam_2mb_isp';
629 $filters['ahbl.org SPAM ISPs']['name'] = 'ahbl.org SPAM-friendly ISP List';
630 $filters['ahbl.org SPAM ISPs']['link'] = 'http://www.ahbl.org/';
631 $filters['ahbl.org SPAM ISPs']['dns'] = 'dnsbl.ahbl.org';
632 $filters['ahbl.org SPAM ISPs']['result'] = '127.0.0.7';
633 $filters['ahbl.org SPAM ISPs']['comment'] =
634 _("FREE - ahbl.org SPAM ISPs - List of SPAM-friendly ISPs.");
46a184ff 635
636 $filters['Leadmon DUL']['prefname'] = 'filters_spam_lm_dul';
637 $filters['Leadmon DUL']['name'] = 'Leadmon.net DUL List';
638 $filters['Leadmon DUL']['link'] = 'http://www.leadmon.net/spamguard/';
639 $filters['Leadmon DUL']['dns'] = 'spamguard.leadmon.net';
640 $filters['Leadmon DUL']['result'] = '127.0.0.2';
641 $filters['Leadmon DUL']['comment'] =
642 _("FREE - Leadmon DUL - Another list of Dial-up or otherwise dynamically assigned IPs.");
643
644 $filters['Leadmon SPAM Source']['prefname'] = 'filters_spam_lm_ss';
645 $filters['Leadmon SPAM Source']['name'] = 'Leadmon.net SPAM Source List';
646 $filters['Leadmon SPAM Source']['link'] = 'http://www.leadmon.net/spamguard/';
647 $filters['Leadmon SPAM Source']['dns'] = 'spamguard.leadmon.net';
648 $filters['Leadmon SPAM Source']['result'] = '127.0.0.3';
649 $filters['Leadmon SPAM Source']['comment'] =
650 _("FREE - Leadmon SPAM Source - List of IPs Leadmon.net has received SPAM directly from.");
651
652 $filters['Leadmon Bulk Mailers']['prefname'] = 'filters_spam_lm_bm';
653 $filters['Leadmon Bulk Mailers']['name'] = 'Leadmon.net Bulk Mailers List';
654 $filters['Leadmon Bulk Mailers']['link'] = 'http://www.leadmon.net/spamguard/';
655 $filters['Leadmon Bulk Mailers']['dns'] = 'spamguard.leadmon.net';
656 $filters['Leadmon Bulk Mailers']['result'] = '127.0.0.4';
657 $filters['Leadmon Bulk Mailers']['comment'] =
658 _("FREE - Leadmon Bulk Mailers - Bulk mailers that do not require confirmed opt-in or that have allowed known spammers to become clients and abuse their services.");
659
660 $filters['Leadmon Open Relays']['prefname'] = 'filters_spam_lm_or';
661 $filters['Leadmon Open Relays']['name'] = 'Leadmon.net Open Relays List';
662 $filters['Leadmon Open Relays']['link'] = 'http://www.leadmon.net/spamguard/';
663 $filters['Leadmon Open Relays']['dns'] = 'spamguard.leadmon.net';
664 $filters['Leadmon Open Relays']['result'] = '127.0.0.5';
665 $filters['Leadmon Open Relays']['comment'] =
666 _("FREE - Leadmon Open Relays - Single Stage Open Relays that are not listed on other active RBLs.");
667
668 $filters['Leadmon Multi-stage']['prefname'] = 'filters_spam_lm_ms';
669 $filters['Leadmon Multi-stage']['name'] = 'Leadmon.net Multi-Stage Relay List';
670 $filters['Leadmon Multi-stage']['link'] = 'http://www.leadmon.net/spamguard/';
671 $filters['Leadmon Multi-stage']['dns'] = 'spamguard.leadmon.net';
672 $filters['Leadmon Multi-stage']['result'] = '127.0.0.6';
673 $filters['Leadmon Multi-stage']['comment'] =
674 _("FREE - Leadmon Multi-stage - Multi-Stage Open Relays that are not listed on other active RBLs and that have sent SPAM to Leadmon.net.");
675
676 $filters['Leadmon SpamBlock']['prefname'] = 'filters_spam_lm_sb';
677 $filters['Leadmon SpamBlock']['name'] = 'Leadmon.net SpamBlock Sites List';
678 $filters['Leadmon SpamBlock']['link'] = 'http://www.leadmon.net/spamguard/';
679 $filters['Leadmon SpamBlock']['dns'] = 'spamguard.leadmon.net';
680 $filters['Leadmon SpamBlock']['result'] = '127.0.0.7';
681 $filters['Leadmon SpamBlock']['comment'] =
682 _("FREE - Leadmon SpamBlock - Sites on this listing have sent Leadmon.net direct SPAM from IPs in netblocks where the entire block has no DNS mappings. It's a list of BLOCKS of IPs being used by people who have SPAMmed Leadmon.net.");
683
684 $filters['NJABL Open Relays']['prefname'] = 'filters_spam_njabl_or';
685 $filters['NJABL Open Relays']['name'] = 'NJABL Open Relay/Direct Spam Source List';
686 $filters['NJABL Open Relays']['link'] = 'http://www.njabl.org/';
687 $filters['NJABL Open Relays']['dns'] = 'dnsbl.njabl.org';
688 $filters['NJABL Open Relays']['result'] = '127.0.0.2';
689 $filters['NJABL Open Relays']['comment'] =
690 _("FREE, for now - Not Just Another Blacklist - Both Open Relays and Direct SPAM Sources.");
691
692 $filters['NJABL DUL']['prefname'] = 'filters_spam_njabl_dul';
693 $filters['NJABL DUL']['name'] = 'NJABL Dial-ups List';
694 $filters['NJABL DUL']['link'] = 'http://www.njabl.org/';
695 $filters['NJABL DUL']['dns'] = 'dnsbl.njabl.org';
696 $filters['NJABL DUL']['result'] = '127.0.0.3';
697 $filters['NJABL DUL']['comment'] =
698 _("FREE, for now - Not Just Another Blacklist - Dial-up IPs.");
699
18b078e9 700 $filters['Conf DSBL.ORG Relay']['prefname'] = 'filters_spam_dsbl_conf_ss';
701 $filters['Conf DSBL.ORG Relay']['name'] = 'DSBL.org Confirmed Relay List';
702 $filters['Conf DSBL.ORG Relay']['link'] = 'http://www.dsbl.org/';
703 $filters['Conf DSBL.ORG Relay']['dns'] = 'list.dsbl.org';
704 $filters['Conf DSBL.ORG Relay']['result'] = '127.0.0.2';
705 $filters['Conf DSBL.ORG Relay']['comment'] =
706 _("FREE - Distributed Sender Boycott List - Confirmed Relays");
707
708 $filters['Conf DSBL.ORG Multi-Stage']['prefname'] = 'filters_spam_dsbl_conf_ms';
709 $filters['Conf DSBL.ORG Multi-Stage']['name'] = 'DSBL.org Confirmed Multi-Stage Relay List';
710 $filters['Conf DSBL.ORG Multi-Stage']['link'] = 'http://www.dsbl.org/';
711 $filters['Conf DSBL.ORG Multi-Stage']['dns'] = 'multihop.dsbl.org';
712 $filters['Conf DSBL.ORG Multi-Stage']['result'] = '127.0.0.2';
713 $filters['Conf DSBL.ORG Multi-Stage']['comment'] =
714 _("FREE - Distributed Sender Boycott List - Confirmed Multi-stage Relays");
715
716 $filters['UN-Conf DSBL.ORG']['prefname'] = 'filters_spam_dsbl_unc';
717 $filters['UN-Conf DSBL.ORG']['name'] = 'DSBL.org UN-Confirmed Relay List';
718 $filters['UN-Conf DSBL.ORG']['link'] = 'http://www.dsbl.org/';
719 $filters['UN-Conf DSBL.ORG']['dns'] = 'unconfirmed.dsbl.org';
720 $filters['UN-Conf DSBL.ORG']['result'] = '127.0.0.2';
721 $filters['UN-Conf DSBL.ORG']['comment'] =
722 _("FREE - Distributed Sender Boycott List - UN-Confirmed Relays");
723
10a26cea 724 foreach ($filters as $Key => $Value) {
725 $filters[$Key]['enabled'] = getPref($data_dir, $username,
726 $filters[$Key]['prefname']);
4eee5968 727 }
728
10a26cea 729 return $filters;
730}
4eee5968 731
0a1dc88e 732/**
733 * FIXME: Undocumented function
734 * @access private
735 */
10a26cea 736function remove_filter ($id) {
737 global $data_dir, $username;
4eee5968 738
10a26cea 739 while ($nextFilter = getPref($data_dir, $username, 'filter' .
740 ($id + 1))) {
741 setPref($data_dir, $username, 'filter' . $id, $nextFilter);
742 $id ++;
4eee5968 743 }
744
10a26cea 745 removePref($data_dir, $username, 'filter' . $id);
746}
4eee5968 747
0a1dc88e 748/**
749 * FIXME: Undocumented function
750 * @access private
751 */
10a26cea 752function filter_swap($id1, $id2) {
753 global $data_dir, $username;
4eee5968 754
10a26cea 755 $FirstFilter = getPref($data_dir, $username, 'filter' . $id1);
756 $SecondFilter = getPref($data_dir, $username, 'filter' . $id2);
757
758 if ($FirstFilter && $SecondFilter) {
759 setPref($data_dir, $username, 'filter' . $id2, $FirstFilter);
760 setPref($data_dir, $username, 'filter' . $id1, $SecondFilter);
4eee5968 761 }
10a26cea 762}
4eec80a7 763
0a1dc88e 764/**
765 * This update the filter rules when renaming or deleting folders
766 * @param array $args
767 */
f5ab1fb9 768function update_for_folder ($args) {
769 $old_folder = $args[0];
a2a566eb 770 $new_folder = $args[2];
771 $action = $args[1];
4eec80a7 772 global $plugins, $data_dir, $username;
773 $filters = array();
774 $filters = load_filters();
775 $filter_count = count($filters);
776 $p = 0;
777 for ($i=0;$i<$filter_count;$i++) {
778 if (!empty($filters)) {
779 if ($old_folder == $filters[$i]['folder']) {
780 if ($action == 'rename') {
781 $filters[$i]['folder'] = $new_folder;
782 setPref($data_dir, $username, 'filter'.$i,
783 $filters[$i]['where'].','.$filters[$i]['what'].','.$new_folder);
784 }
785 elseif ($action == 'delete') {
786 remove_filter($p);
787 $p = $p-1;
788 }
789 }
790 $p++;
791 }
792 }
793}
0a1dc88e 794
795/**
fb577a4d 796 * Function extracted from sqimap_get_small_header_list.
797 * The unused FETCH arguments and HEADERS are disabled.
0a1dc88e 798 * @access private
fb577a4d 799 */
800function filter_get_headers ($imap_stream, $query) {
fb577a4d 801 /* Get the small headers for each message in $msg_list */
802
6201339c 803 $read_list = sqimap_run_command_list ($imap_stream, $query, false, $response, $message, TRUE);
fb577a4d 804
805 if (isset($response) && $response != 'OK') {
806 return false;
807 }
808
809
810 foreach ($read_list as $r) {
811 $read = implode('',$r);
812 /*
813 * #id<space>FETCH<space>(
814 */
815 /* extract the message id */
816 $i_space = strpos($read,' ',2);
817 $id = substr($read,2,$i_space-2);
818 $fetch = substr($read,$i_space+1,5);
819 if (!is_numeric($id) && $fetch !== 'FETCH') {
820 set_up_language($squirrelmail_language);
821 echo '<br><b><font color=$color[2]>' .
822 _("ERROR : Could not complete request.") .
823 '</b><br>' .
824 _("Unknown response from IMAP server: ") . ' 1.' .
825 htmlspecialchars($read) . "</font><br>\n";
826 break;
827 }
828 $i = strpos($read,'(',$i_space+5);
829 $read = substr($read,$i+1);
830 $i_len = strlen($read);
831 $i = 0;
832 while ($i < $i_len && $i !== false) {
833 /* get argument */
834 $read = trim(substr($read,$i));
835 $i_len = strlen($read);
836 $i = strpos($read,' ');
837 $arg = substr($read,0,$i);
838 ++$i;
839 switch ($arg)
840 {
841 case 'UID':
842 $i_pos = strpos($read,' ',$i);
843 if (!$i_pos) {
844 $i_pos = strpos($read,')',$i);
845 }
846 if ($i_pos) {
847 $unique_id = substr($read,$i,$i_pos-$i);
848 $i = $i_pos+1;
849 } else {
850 break 3;
851 }
852 $msgs[$id]['UID'] = $unique_id;
853 break;
854 // case 'FLAGS':
855 // $flags = parseArray($read,$i);
856 // if (!$flags) break 3;
857 // $msgs[$id]['FLAGS'] = $flags;
858 // break;
859 // case 'RFC822.SIZE':
860 // $i_pos = strpos($read,' ',$i);
861 // if (!$i_pos) {
862 // $i_pos = strpos($read,')',$i);
863 // }
864 // if ($i_pos) {
865 // $size = substr($read,$i,$i_pos-$i);
866 // $i = $i_pos+1;
867 // } else {
868 // break 3;
869 // }
870 // $msgs[$id]['SIZE'] = $size;
871 //
872 // break;
873 // case 'INTERNALDATE':
874 // $msgs[$id]['INTERNALDATE'] = parseString($read,$i);
875 // break;
876 case 'BODY.PEEK[HEADER.FIELDS':
877 case 'BODY[HEADER.FIELDS':
878 $i = strpos($read,'{',$i);
879 $header = parseString($read,$i);
880 if ($header === false) break 3;
881 /* First we unfold the header */
882 $hdr = trim(str_replace(array("\r\n\t", "\r\n "),array('', ''), $header));
883 /* Now we can make a new header array with */
884 /* each element representing a headerline */
885 $hdr = explode("\r\n" , $hdr);
886 foreach ($hdr as $line) {
887 $pos = strpos($line, ':');
888 if ($pos > 0) {
889 $field = strtolower(substr($line, 0, $pos));
890 if (!strstr($field,' ')) { /* valid field */
891 $value = trim(substr($line, $pos+1));
892 switch($field) {
893 case 'received': $msgs[$id]['HEADER']['Received'][] = $value; break;
894 // case 'to': $msgs[$id]['HEADER']['To']= $value; break;
895 // case 'cc': $msgs[$id]['HEADER']['Cc'] = $value; break;
896 // case 'from': $msgs[$id]['HEADER']['From'] = $value; break;
897 // case 'date': $msgs[$id]['HEADER']['Date'] = $value; break;
898 // case 'x-priority': $msgs[$id]['HEADER']['Prio'] = $value; break;
899 // case 'subject': $msgs[$id]['HEADER']['Subject'] = $value; break;
900 // case 'content-type':$msgs[$id]['HEADER']['Content-Type'] = $value; break;
901 default: break;
902 }
903 }
904 }
905 }
906 break;
907 default:
908 ++$i;
909 break;
910 }
911 }
912 }
913 return $msgs;
914}
915
0a1dc88e 916/**
917 * Display formated error message
918 * @param string $string text message
919 * @return string html formated text message
920 * @access private
921 */
922function do_error($string) {
923 global $color;
924 echo "<p align=\"center\"><font color=\"$color[2]\">";
925 echo $string;
926 echo "</font></p>\n";
927}
6201339c 928?>
Unnamed repository; edit this file 'description' to name the repository.